"The game I play is a very interesting one. It's imagination in a tight straightjacket, which is this: that it has to agree with the known laws of physics. [...] It requires imagination to think of what's possible, and then it requires an analysis back, checking to see whether it fits, it's allowed, according to what's known, okay?"

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A polio outbreak threatens global eradication plans, and what happened to America’s first dogs

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Wild polio has been hunted to near extinction in a decades-old global eradication program. Now, a vaccine-derived outbreak in the Democratic Republic of the Congo (DRC) is threatening to seriously extend the polio eradication endgame. Deputy News Editor Leslie Roberts joins host Sarah Crespi to talk about the tough choices experts face in the fight against this disease in the DRC.
Sarah also talks with Online News Editor David Grimm about when dogs first came to the Americas. New DNA and archaeological evidence suggest these pups did not arise from North American wolves but came over thousands of years after the first people did. Now that we know where they came from, the question is: Where did they go?
Read the research.
This week’s episode was edited by Podigy.
Listen to previous podcasts.
[Image: Polio virus/David Goodsell/RCSB PDB; Music: Jeffrey Cook]